Method of locking nuts to bolts



(No Model.)

. B. H. WILLIAMS.

METHOD OF LOCKING NUTS T0. BOLTS.

No. 299,447. 7 Patented May 27, 1884.

Kim I. I 'IHI1 W\TNESSES. INVENTOR,

UNITED STATES- PATENT OFFIC BENJAMIN WILLIAMS, or LAWRENGEvILLE, PENNSYLVANIA.

METHOD 50 LocKme NUTS r BOLTS.

SPECIFICATION forming part ofLetters Patent No. 299447, dated May 27, 1884.

Y Application filed September 1, 1883. (No model.) i

To all whom it may concern:

Be it known that I, BENJAMIN H. WILL- IAMs, of Lawrenceville, county of Tioga, and State of Pennsylvania, have invented certain new and useful Improvements in Methods of Securing ,Nuts to Bolts, which improvements are fully/set forth and described in the following specification, reference being. had to the accompanying drawings. i p My improvement relates to that class of me- "chanical devices commonly known as nutlocks', by means of which nuts may be so secured to bolts that the ordinary jar of the mechanism to which they are attached. cannot loosen the nuts, yet when sufficient power is exerted in a proper way said nuts may be removed, and the same bolts and nuts beagain used, if so desired. My object is to produce a nut-lock which may be cheaply made, and which may be readily understood and used by any one of ordinary intelligence.

In the annexed drawings, Figurel is a side View of a bolt as commonly constructed and 2 as used with my new form of nut-lock. Fig.

2 represents the nuts of my device as used in Figs. 4 and 5. Fig.3 is a detached View of the wire which completes the lock. Fig. 4 is p a view in section showing my device applied 0, to railroad-rails. Fig. 5 shows my lockingwire as upset against the fish-plate, instead of against the bolt, as in Fig. 4.

The general principle of -my lock is, briefly stated, as follows: .A suitable hole, 0,- is pro- 3 5 yided in'the nut, and after said nut isscrewed homea depression is made in the bolt or fishplate at the bottom of said hole. A piece ofwire which fills hole 0 is then introduced,

and is upset against the bolt or fish-plate,

said principleof upsetting or riveting the-' inner and outer ends of thewire' being the prime'feature of my invention. A

A represents a bolt provided with the customary head at one end, and threaded at the :ther end.

B B represent nuts tapped to fit the abovenentioned bolt, they being in general appearnce identical with nuts as commonly made t. :1 used.\ Said nuts may be square, hexagbolt A. After having passed the bolt through onal, or of any practical shape. On one or I the fish-plates and rail, the nut B is screwed tightly onto the bolt. A prick-punch'or other pointed tool is entered in hole 0, and struck sharply with a hammer, thereby indenting thebolt or fish-plate. The wire e is now introduced into a, and its outer end struck repeatedly, as in the act of riveting,when both the outer and inner ends of said wire become upset or headed, the inner end being forced 7o 1 into the indented bolt, and preventing the nut from turning under ordinary usage.vv Should i it, however, become necessary to remove the nut, a suitable degree of leverage applied to the nut will out off that part of ,wire 0 which extends into the bolt, the nut and bolt acting as shears under such powerful leverage. The

nut may then be easily unscrewed, the old wire punched out, and ,said nut may bev used repeatedly, if so desired. i

In Fig. 5 the hole in nut 13 is made parallel with the bolt and adapted to-lock against the fish-plate, instead of against the bolt, thede-' tails of use and construction being otherwise the same as'before described. A

I am aware that bolts have been constructedi :with a longitudinal groove or key-seat to receive a spline or similar locking device, and am also aware of Oarneys patent,No. 197,923, C

in which the nut seat or washer must be previ- 90 i ously serrated or notched, and in-which the metal must be placed in the back side of the nut before said nut is-screwed home, all of which devices are hereby disclaimed.

What "I do claim as new, and wishto secure 5 by Letters Patent, is

The within described method of locking nuts to bolts,consisting of perforating the nut,-

as at c, the inner side of said perforation beand filling the priok-punche 1 indentation, us

ing somewhat enlarged, screwing said nut and for the purpose specified.-

firm-ly onto the bolt inserting a prick-punch T T i in 0, and indenting the bolt or'nut-seat, then BENJAMIL ILLTA} inserting a pin whose outer end remains above \Vitnesses:

- the surface of said nut, and riveting said pin, FRANK H. ALLEN,

thereby upsetting bothits outer and inner ends FRANK L. LAT1-1RoP. 

